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<table width="100%" summary="page for Cowles"><tr><td>Cowles</td><td align="right">R Documentation</td></tr></table>

<h2>Cowles and Davis's Data on Volunteering</h2>

<h3>Description</h3>


<p>The <code>Cowles</code> data frame has 1421 rows and 4 columns.
These data come from a study of the personality determinants
of volunteering for psychological research.
</p>


<h3>Usage</h3>

<pre>Cowles</pre>


<h3>Format</h3>


<p>This data frame contains the following columns:
</p>

<dl>
<dt>neuroticism</dt><dd><p>scale from Eysenck personality inventory</p>
</dd>
<dt>extraversion</dt><dd><p>scale from Eysenck personality inventory</p>
</dd>
<dt>sex</dt><dd><p>a factor with levels: <code>female</code>; <code>male</code></p>
</dd>
<dt>volunteer</dt><dd><p>volunteeing, a factor with levels: <code>no</code>; <code>yes</code></p>
</dd>
</dl>



<h3>Source</h3>


<p>Cowles, M. and C. Davis (1987)
The subject matter of psychology: Volunteers.
<EM>British Journal of Social Psychology</EM> <B>26</B>, 97&ndash;102.
</p>


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